My family and I, were in the car on our way to a weekend of skiing.
Dad had booked it as a surprise for us, after my stepsister and I had returned from college for the holidays, and it was an awesome way to start our vacation, before we would then head home from Christmas.
Anyway, as I said, we were sat in the family car, heading to the mountains for a couple of days of skiing, and while dad drove, and my stepmother sat beside him navigating, my stepsister Jenna and I, sat in the back seat keeping ourselves entertained.
That actually meant we were staring at our phones most of the time, watching TV shows, films, or whatever else we could find, while occasionally looking up to see something our mother was pointing out.
Anyway, a couple of hours into the drive, Jenna decided she wanted to lay out across the back seat, and kicking off her snow boots, then put her little socked feet in my lap.
It was a little annoying, but I didn't want to start an argument, so I just ignored her, and carried on looking at my phone.
Then after a bit, she started to move her feet about, tapping them up and down, and again I tried to ignore it, but then she moved her feet, and was now pressing down on my crotch.
I instantly looked at her with an unhappy look, and even though she was looking at her phone, she smiled, knowing exactly what she was doing.
I wanted to say something, but at the same time again, I didn't want to start a fight that might ruin the holiday, so I just pushed feet away, and carried on looking at my phone.
However, Jenna seemed to be in a mood to annoy me, and just moved them back onto my crotch, and then, not only started to tap them up and down, she started to rub them around in circles too.
Having her little heels pressing into my bulge, and rubbing it, inevitably started to awake my dick, and I had to try and adjust myself casually, to stop it growing any further.
I couldn't believe my stepsister was behaving like this, we had been a family for several years now, since our parents married, and not once had Jenna shown any interest in me that way, but now, having spent half a year at university, she seemed a complete different person.
Anyway, her little feet then continued rub against my growing bulge, and the more she played with me, the firmer I got.
My cock was soon fully hard, and straining against my jeans, and I had to bite my lip, to stop myself from moaning out loud.
It was then, Jenna turned one of her little feet onto its side, and began rubbing it up and down the length of my trouser lump, and once again, I had to stop myself from moaning out loud.
As she caressed my member through my jeans, I glanced over at her in complete disbelief, and my stepsister just smiled back, clearly enjoying her little game.
For a couple of minutes, as we continued to drive towards our destination, Jenna kept sliding her little foot back and forth across my crotch, before my phone beeped with a message, and when I looked at it, it was from her, and it said 'I dare you to get it out!'
I again couldn't believe she had just sent me that, and I instantly looked over at her in disbelief again.
She just casually grinned back, as she continued to stare at her phone, and then a moment later I got another message from her 'Go on! I dare you, or are you chicken?'
Once again, I couldn't believe she had sent me that, but as she continued to rub her little foot up and down my straining bulge, I have to admit, the idea began to appeal to me.
After a little more caressing from her, the urge to whip it out and stroke it, was really beginning to grow, so eventually, I glanced over at our parents, and they were clearly busy with driving and where we were going to notice what was going on in the back seat, so, I reached down, took a hold of my jeans, and began undoing them.
As I did, I glanced over at my little petite, brunette haired stepsister, and she just grinned back at me, clearly excited I was going to do what she wanted.
Popping the top button, I then undid the zip, and gently, pulled open my jeans.
My hard young cock quickly sprung up, and for the first time ever, I was showing my boner to my little stepsister.
Jenna's little face lit up even more excited, like she had just opened the best Christmas gift ever, as she stared at my big thick veiny length, before she then moved her little socked covered feet towards it, and wrapped them around my dick.
I instantly moaned in pleasure, as her little feet clamped around my hard member, and held my cock firmly, and as I did, our mother then asked "What honey?"
"Nothing mom! I was just... watching something on my phone!" I quickly replied back.
"Oh okay." My stepmother then said, before she continued chatting with my father.
My stepsister then started to move her little feet up and down my firm shaft, happily sliding them either side of my firm cock, and I had to bite my lip more, as the pleasure ran through me.
As she continued to jerk my hard dick, I glanced over at her, and she just sat there staring back at me with a happy grin on her face.
Jenna then kept going, sliding her socked feet up and down my length some more, and every time they moved up and down, I had to stop myself from moaning loudly.
After a while of rubbing my member like that, she then seem to want to really feel my warm thick meat pole between her feet, because using just her little toes, she pulled her little white socks off, and then clamped her bare feet back around my shaft.
I have to admit, that felt even better, skin on skin, and the moment her warm soft feet hugged my dick tightly, I moaned a little louder in pleasure.
"What?" my stepmother asked again.
"Nothing! Just watching my phone." I replied quickly back.
As my stepmother then went back to her conversation with my father, my stepsister then began to jerk me again, and I had to seriously bite my lip from moaning out loud.
Jenna keenly tugged on my hard length, happily stroking her little bare feet up and down my firm shaft, and it felt wonderful, and was probably, one of the best experiences I had ever had.
Luckily for me, she seem to be enjoying it too, and kept going, jerking my stiff member firmly with the balls of her feet, for several wonderful minutes.
The time seem to fly by, as I sat there lost in a world of pleasure, and eventually, I began to feel my excitement begin to grow.
As she kept stroking my cock, I looked over at her, wondering if she was going to keep going, until I came.
After another minute or more, it seemed so, so I tried to warn her that I was close to cumming, but she just sat there grinning at me, and continued to jerk my firm throbbing dick.
Once more I had to bite my lip again, as the pleasure increased in me, and still my stepsister continued to tug on my firm dick with her little feet.